Fig. 1: Prototype of ultrasound system.

a Picture of the ultrasound prototype. b Close-up of the ultrasound transducers. c 4×8-1 multiplexer foil, shown when flexed, and a close-up of the multiplexer circuitry. d Micrograph of the silicon die, integrating an AFE and an ADC. e Block diagram of the receiver (RX) electronics. f Bock diagram of the complete implemented system.